In Portrait of a Gentleman, seated, probably William Suddel of Lancaster, the subject is depicted in a formal setting. The gentleman is dressed in elegant attire, showcasing the fashion of the 18th century. The color palette consists of rich, deep hues, with a focus on dark blues and browns.

The background is softly rendered, allowing the figure to stand out prominently. The painting is executed in oil on canvas, a popular medium during the 18th century. The dimensions are approximately 76 x 63 cm, making it a sizable portrait. Viewers can observe the fine details in the gentleman's clothing and facial features, which are rendered with careful attention.

The brushwork is smooth, contributing to the lifelike quality of the subject. George Romney was a prominent British portrait painter known for his ability to capture the character of his sitters. This work, likely painted in the 1770s, reflects the Romantic style that emphasizes individual expression. An interesting fact about this painting is that it is believed to depict William Suddel, a notable figure from Lancaster, which adds historical significance to the artwork.

Romney's portraits were highly sought after by the British elite of his time.